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CASIO

CASIO F-91WG-9S Digital Chronograph Watch 38.20mm 30m

SKU CH-AC32-QHJT4

A lightweight resin watch with digital chronograph, daily alarm and 1/100-second stopwatch, water-resistant to 30 m

  • Watch movementQuartz
  • Product shapeRectangle
  • Display typeDigital
  • Strap materialResin
  • Closure typeBuckle Clasp
  • Item conditionNew
  • Precise 1/100-second stopwatch for accurate timing
  • Daily alarm keeps your schedule on track
  • Micro light illuminates the display in darkness
  • 30 m water resistance handles splashes and rain
  • Lightweight resin case and strap for all-day comfort

Everyday digital chronograph for daily timing

The Casio F-91WG-9S is a lightweight quartz watch built for men who need a simple, readable display and basic timing tools. Its resin case and strap keep the profile slim at 38.20 mm thick, while the fixed bezel protects the digital screen. A micro light illuminates the face in low light, and the buckle clasp secures the band quickly.

Sustained timing accuracy

The stopwatch measures intervals down to one-hundredth of a second and continues running reliably during extended sessions. Daily alarms and a day display operate independently of the chronograph, so reminders stay on schedule even when the stopwatch is active. Quartz movement maintains consistent rate without the drift seen in mechanical movements over long periods.

Low-profile comfort with 30 m water resistance

The all-resin construction weighs very little and resists sweat, making it comfortable for all-day wear. Water resistance to 30 m handles hand-washing, rain and accidental splashes without condensation buildup. No audible alerts or moving parts mean silent operation in quiet environments, and the quartz module draws minimal power from its cell.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $38.99
Cheaper than about 83% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleChronograph
Item conditionNew
Display
Display typeDigital
Size & build
Main materialResin
Product shapeRectangle
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialResin
Case size38.2 mm
Environment & compliance
Water resistance30m
More details
Watch movementQuartz
Suitable forMale

Questions about this item

How much daily heat or noise does the quartz movement produce when worn all day?

The quartz movement runs silently and generates no noticeable heat on the wrist.

What strap size or tool is needed to adjust the resin band?

The integrated resin strap uses a buckle clasp; no tools or extra links are required for sizing.

Will the 38.20 mm resin case sit flush against older metal watch bands if I swap straps?

The fixed lugs are moulded into the resin case, so standard spring-bar bands cannot be attached.

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